Regioselective Metal-Free Decarboxylative Multicomponent Coupling of α-Amino Acids, Aldehydes and Isonitriles Leading to<i>N</i>-Substituted Azacyclic-2-carboxamides with Antithrombotic Activity
作者:Shashikant U. Dighe、Anil Kumar K. S.、Smriti Srivastava、Pankaj Shukla、Surendra Singh、Madhu Dikshit、Sanjay Batra
DOI:10.1021/jo502029k
日期:2015.1.2
An atom-economical regioselective synthesis of N-substituted prolinamides or N-substituted piperidine-2-carboxamides via a metal-free decarboxylative multicomponent coupling between l-proline or pipecolic acid, aldehydes, and isonitriles is described. The cascade event involves sequential imine formation, decarboxylation, isonitrile insertion, and hydrolysis to afford the product in one-pot. Two of the prolinamides were found to display appreciable antithrombotic activity via inhibition of platelet aggregation.